| 1 | /* FCE Ultra - NES/Famicom Emulator |
| 2 | * |
| 3 | * Copyright notice for this file: |
| 4 | * Copyright (C) 2006 CaH4e3 |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | #include "mapinc.h" |
| 22 | #include "mmc3.h" |
| 23 | |
| 24 | //static uint8 *CHRRAM; |
| 25 | static uint8 tekker; |
| 26 | |
| 27 | static void MSHCW(uint32 A, uint8 V) |
| 28 | { |
| 29 | if(EXPREGS[0]&0x40) |
| 30 | setchr8r(0x10,0); |
| 31 | else |
| 32 | { |
| 33 | if(A<0x800) |
| 34 | setchr1(A,V|((EXPREGS[0]&8)<<5)); |
| 35 | else if(A<0x1000) |
| 36 | setchr1(A,V|((EXPREGS[0]&4)<<6)); |
| 37 | else if(A<0x1800) |
| 38 | setchr1(A,V|((EXPREGS[0]&1)<<8)); |
| 39 | else |
| 40 | setchr1(A,V|((EXPREGS[0]&2)<<7)); |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | static DECLFW(MSHWrite) |
| 45 | { |
| 46 | EXPREGS[0]=V; |
| 47 | FixMMC3CHR(MMC3_cmd); |
| 48 | } |
| 49 | |
| 50 | static DECLFR(MSHRead) |
| 51 | { |
| 52 | return(tekker); |
| 53 | } |
| 54 | |
| 55 | static void MSHReset(void) |
| 56 | { |
| 57 | MMC3RegReset(); |
| 58 | tekker^=0xFF; |
| 59 | } |
| 60 | |
| 61 | static void MSHPower(void) |
| 62 | { |
| 63 | tekker=0x00; |
| 64 | GenMMC3Power(); |
| 65 | SetWriteHandler(0x4100,0x4100,MSHWrite); |
| 66 | SetReadHandler(0x4100,0x4100,MSHRead); |
| 67 | } |
| 68 | |
| 69 | static void MSHClose(void) |
| 70 | { |
| 71 | if(CHRRAM) |
| 72 | FCEU_gfree(CHRRAM); |
| 73 | CHRRAM=NULL; |
| 74 | } |
| 75 | |
| 76 | void UNLSHeroes_Init(CartInfo *info) |
| 77 | { |
| 78 | GenMMC3_Init(info, 256, 512, 0, 0); |
| 79 | cwrap=MSHCW; |
| 80 | info->Power=MSHPower; |
| 81 | info->Reset=MSHReset; |
| 82 | info->Close=MSHClose; |
| 83 | CHRRAM = (uint8*)FCEU_gmalloc(8192); |
| 84 | SetupCartCHRMapping(0x10, CHRRAM, 8192, 1); |
| 85 | AddExState(EXPREGS, 4, 0, "EXPR"); |
| 86 | } |